python window location problem

Previously fixed window location, after the window added a menu component, the window location appears randomly.

Insert menu component code?

        self.menu1 = tkinter.Menu(self.window)
        self.menu1.add_command(label="一个")
        self.menu1.add_cascade(label="二个")
        self.menu1.add_checkbutton(label="三个")
        self.window.config(menu=self.menu1)

window:

        width = 1200
        height = 600
        self.style = Style(theme='newtheme')
        self.window = self.style.master
        self.window.title('系统')  
        self.screenwidth = self.window.winfo_screenwidth()
        self.screenheight = self.window.winfo_screenheight()
        self.window.resizable(False, False) 
        self.window.geometry('%dx%d+%d+%d' % (width, height, (self.screenwidth - width) / 2, (self.screenheight -
                                                                                              height) / 2 - 50))

created a simple window without such a problem. I wonder if there will be problems with this component and others. Hope to solve it.